Neodymium Disc Magnet – 12mm x 10mm

The Neodymium Disc Magnet – 12mm x 10mm is a compact, thick-profile rare earth permanent magnet measuring 12mm in diameter x 10mm thick. Manufactured from Neodymium Iron Boron (NdFeB), this cylindrical disc magnet provides high magnetic performance relative to its physical size and is suitable for industrial equipment, engineering, manufacturing, product assemblies, magnetic closures, sensors, fixtures, prototypes and custom OEM applications.

With a 12mm circular face and substantial 10mm thickness, this neodymium magnet is suitable for integration into cylindrical housings, circular recesses and compact mechanical assemblies. Neodymium magnets are widely used where strong permanent magnetic properties are required within limited installation space.

Also known as a rare earth disc magnet, NdFeB disc magnet, round neodymium magnet, neodymium cylinder magnet or permanent disc magnet, this magnetic component operates continuously without electricity, batteries or charging.

Key Features

• Diameter: 12mm
• Thickness: 10mm
• Material: Neodymium Iron Boron (NdFeB)
• Rare earth permanent magnet
• Compact, thick-profile cylindrical shape
• High magnetic performance relative to size
• Suitable for circular recesses and housings
• Suitable for magnetic holding and positioning
• Useful for magnetic closures and catches
• Suitable for sensors and instrumentation
• Suitable for industrial and engineering assemblies
• Permanent magnetic operation
• No electricity, batteries or charging required
• Suitable for prototypes and OEM products

Common Applications

• Industrial equipment
• Engineering
• Manufacturing
• Product assemblies
• Magnetic holding and positioning
• Magnetic closures and catches
• Fixtures and jigs
• Machinery
• Sensors
• Magnetic switches
• Instrumentation
• Electronics
• Furniture and cabinetry
• Displays and signage
• Models and prototypes
• Research and development
• Custom magnetic assemblies
• OEM products

12mm Diameter x 10mm Thick Neodymium Magnet

This neodymium magnet measures 12mm in diameter x 10mm thick, giving it a relatively thick cylindrical profile compared with thinner disc magnets of a similar diameter.

Its compact geometry can be useful for installation into:

• Circular recesses
• Cylindrical housings
• Product assemblies
• Mechanical equipment
• Magnetic closures
• Fixtures and jigs
• Sensor systems
• Prototype components

Where the magnet is installed into a recess, provide appropriate dimensional clearance rather than force-fitting the brittle magnetic material.

Neodymium Iron Boron Rare Earth Magnet

Neodymium Iron Boron (NdFeB) is a high-performance rare earth permanent magnetic material widely used in applications requiring substantial magnetic performance from compact dimensions.

Neodymium magnets are commonly incorporated into:

• Industrial equipment
• Mechanical assemblies
• Sensors
• Electronics
• Closures
• Fixtures
• Machinery
• Manufactured products

The specific neodymium grade has not been supplied for this magnet and should not be assumed.

Magnetic Holding and Positioning

This 12mm x 10mm neodymium magnet can be incorporated into appropriately designed magnetic holding and positioning systems.

Potential uses include:

• Component positioning
• Removable components
• Equipment assemblies
• Fixtures
• Jigs
• Inspection equipment
• Product manufacturing
• Prototype systems

Depending on the design, the magnet may attract suitable ferromagnetic steel or another appropriately oriented permanent magnet.

Where vibration, impact or dynamic movement is present, magnetic holding should be tested under actual operating conditions.

Magnetic Closures and Catches

Compact neodymium magnets can be incorporated into magnetic closure systems for:

• Cabinets
• Furniture
• Boxes
• Product enclosures
• Access panels
• Display components
• Packaging
• Custom manufactured products

A closure may use the neodymium magnet with a suitable steel strike plate or with another correctly oriented magnet.

For magnet-to-magnet closures, confirm polarity before permanent installation.

Sensors and Instrumentation

The compact cylindrical dimensions may also make this neodymium magnet useful for magnetic sensing applications.

Potential uses include:

• Position sensors
• Proximity detection
• Reed switches
• Magnetic switches
• Instrumentation
• Mechanical indicators
• Automation equipment
• Prototype electronics

The magnetisation direction and pole orientation have not been supplied. These specifications should be confirmed where the direction or geometry of the magnetic field is important.

Fixtures and Jigs

This magnet may also be incorporated into small fixtures and jigs where magnetic positioning or temporary retention is required.

Potential applications include:

• Assembly fixtures
• Inspection jigs
• Positioning guides
• Removable stops
• Prototype tooling
• Production equipment

Magnetic holding should not replace appropriate mechanical retention where unexpected release could create a safety hazard.

Magnetic Performance

Actual magnetic performance depends on factors including:

• Neodymium grade
• Magnetisation direction
• Magnet geometry
• Target steel composition
• Target steel thickness
• Available contact area
• Surface flatness
• Air gaps
• Paint and coatings
• Rust and contamination
• Load direction
• Magnetic circuit design

No specific pull force or magnetic flux density in Gauss has been supplied for this product and these values should not be inferred from its dimensions.

Direct Pull vs Shear Force

Magnetic holding performance varies according to load direction.

Direct pull occurs when the magnet is pulled perpendicular to a target steel surface.

Shear force occurs when the applied load acts parallel to the surface and encourages the magnet to slide.

Practical holding on vertical steel can therefore be significantly lower than ideal direct-pull performance.

Surface friction, leverage, vibration and movement can further affect practical holding.

Air Gaps and Surface Contact

Neodymium magnets generally provide their best magnetic performance when positioned close to compatible ferromagnetic material.

Magnetic attraction can be reduced by gaps created by:

• Paint
• Powder coating
• Adhesive
• Protective films
• Plastic
• Dirt
• Rust
• Uneven surfaces
• Mechanical clearance

For improved performance, minimise unnecessary separation between the magnet and target material wherever practical.

Bonding Neodymium Disc Magnets

This magnet may be bonded into a suitable circular recess or onto an appropriate substrate.

Before bonding:

• Confirm magnetic polarity and orientation
• Ensure both surfaces are clean and dry
• Remove oil, grease and contamination
• Select an adhesive compatible with both materials
• Provide suitable dimensional clearance
• Avoid force-fitting
• Allow the adhesive to cure according to its instructions

The specific coating or plating for this magnet has not been supplied, so adhesive compatibility should be verified for the actual surface finish.

Compatible Target Materials

Neodymium magnets attract suitable ferromagnetic materials, including:

• Mild steel
• Iron
• Magnetic steel
• Compatible ferromagnetic components

They do not effectively attract non-magnetic materials such as:

• Aluminium
• Copper
• Brass
• Plastic
• Timber
• Glass

Many stainless steel grades may be weakly magnetic or non-magnetic and should be tested before relying on magnetic attraction.

Neodymium vs Ferrite Disc Magnets

Neodymium and ferrite magnets provide different advantages.

Neodymium magnets generally offer:

• Higher magnetic performance relative to size
• Strong magnetic properties from compact dimensions
• Advantages where installation space is limited
• Broad use in industrial, sensing and precision applications

Ferrite magnets are generally:

• More economical
• Naturally corrosion resistant
• Suitable for many general-purpose applications
• Useful where larger physical dimensions are acceptable

Neodymium is often preferred where compact dimensions and high magnetic performance relative to magnet volume are priorities.

Permanent Magnetic Operation

This neodymium disc magnet is a permanent magnet.

It requires:

• No electricity
• No batteries
• No charging
• No external power supply

Its magnetic field remains continuously active during normal use.

Technical Specifications

• Product Type: Neodymium Disc Magnet
• Alternative Names: Rare Earth Disc Magnet, NdFeB Disc Magnet, Round Neodymium Magnet, Neodymium Cylinder Magnet
• Diameter: 12mm
• Thickness: 10mm
• Shape: Disc / Cylinder
• Magnetic Material: Neodymium Iron Boron (NdFeB)
• Magnet Type: Rare Earth Permanent Magnet
• Magnetic Operation: Permanent
• Power Required: None
• Target Materials: Compatible ferromagnetic iron and steel
• Primary Functions: Magnetic holding, positioning, sensing and attraction
• Typical Applications: Industrial equipment, product assemblies, closures, fixtures, sensors, engineering, manufacturing, prototypes and OEM products

Handling Neodymium Magnets

Neodymium magnets are hard and brittle and should be handled carefully.

Avoid:

• Allowing magnets to snap together
• Allowing the magnet to strike steel objects
• Dropping it onto hard surfaces
• Force-fitting it into an undersized recess
• Drilling
• Cutting
• Machining
• Applying unnecessary impact

Neodymium magnets can chip, crack or break during uncontrolled collisions. Damaged fragments may have sharp edges.

Safety Information

This 12mm neodymium magnet presents a serious ingestion hazard and must be kept securely away from babies and children.

Swallowed magnets can cause severe or life-threatening internal injuries. Multiple swallowed magnets, or a magnet swallowed with another metal object, can attract through intestinal tissue. Seek urgent medical attention if magnet ingestion is suspected.

Keep neodymium magnets an appropriate distance from:

• Pacemakers
• Implanted medical devices
• Magnetic storage media
• Magnetic cards
• Sensitive electronic equipment

Strong neodymium magnets can also create pinch hazards when attracted to steel or other magnets.

Where unexpected magnetic release could cause injury or equipment damage, use suitable mechanical retention rather than relying solely on magnetic attraction.

Please Note

This product is a Neodymium Disc Magnet measuring 12mm in diameter x 10mm thick, manufactured from Neodymium Iron Boron (NdFeB) rare earth magnetic material.

No specific neodymium grade, pull force, Gauss rating, coating or plating, magnetisation direction, pole orientation, dimensional tolerance or maximum operating temperature has been supplied and these specifications should not be assumed.

Actual magnetic performance depends on magnetic grade, magnetisation, target steel composition and thickness, available contact area, air gaps, surface condition, magnetic circuit and operating conditions.

Due to its compact size, this magnet presents a serious ingestion hazard and must be kept securely away from children.

This magnet is not certified lifting equipment and should not be used for overhead or safety-critical lifting.